Tobacco industry regulation

FILE - In this Feb. 20, 2014, file photo, a patron exhales vapor from an e-cigarette at a store in New York. Only two years ago e-cigarettes were viewed as holding great potential for public health: offering a way to wean smokers off traditional cigarettes. But now Juul and other vaping companies face an escalating backlash that threatens to sweep their products off the market. (AP Photo/Frank Franklin II, File)

FILE - In this June 17, 2019, file photo, a cashier displays a packet of tobacco-flavored Juul pods at a store in San Francisco. Juul Labs said Monday, Sept. 30, 2019, that it will stop supporting a ballot measure to overturn an anti-vaping law in San Francisco, effectively killing the campaign. (AP Photo/Samantha Maldonado, File)

FILE - In this Dec. 20, 2018, file photo Juul products are displayed at a smoke shop in New York. Philip Morris and Altria have ended merger talks and JUUL’s CEO is stepping down from the top post as criticism over vaping continues to intensify. The companies confirmed last month that they were in discussions, more than a decade after splitting itself into two companies. (AP Photo/Seth Wenig, File)

CDC Principal Deputy Secretary Dr Anne Schuchat is sworn in as she appears before a House Oversight subcommittee hearing on lung disease and e-cigarettes on Capitol Hill in Washington, Tuesday, Sept. 24, 2019. (AP Photo/Andrew Harnik)

In this photo taken Sunday, March 19, 2017, vaping enthusiasts demonstrate their skills at a vape talent show in northern China's Tianjin Municipality. A state news agency says China is preparing to impose controls on the content of liquid and additives used in electronic cigarettes amid rising global concern about deaths and illnesses blamed on vaping. (Chinatopix Via AP)

FILE - In this Sept. 3, 2019 file photo, a Walmart logo is displayed outside of a Walmart store, in Walpole, Mass. Walmart says it will stop selling electronic cigarettes at its namesake stores and Sam's Clubs following a string of illnesses and deaths related to vaping. The nation's largest retailer said Friday, Sept. 20 that it will complete its exit from e-cigarettes after selling through current inventory. It cited growing federal, state and local regulatory complexity regarding vaping products. (AP Photo/Steven Senne, File)

FILE - In this Sept. 16, 2019 file photo flavored vaping solutions are shown in a window display at a vape and smoke shop, in New York. Michigan has joined New York in banning the sale of flavored e-cigarettes as federal health officials investigate the cause of hundreds of serious breathing illnesses in people who have used vaping devices. The Michigan Department of Health and Human Services released details of the ban Wednesday, Sept. 18 and gave retailers, including online sellers, two weeks to comply. The ban includes menthol and mint flavored products. (AP Photo/Bebeto Matthews File)

Gov. Gavin Newsom announced that California will spend $20 million on a public awareness campaign about the dangers of vaping nicotine and cannabis products amid a rise in vaping-related illnesses, during a news conference in Sacramento, Calif., Monday, Sept. 16, 2019. (AP Photo/Rich Pedroncelli)